Fluval U1 Internal Filter Replacement Foam Sponge

Fluval U1 Foam Pad captures large particles and debris for effective mechanical filtration, the crucial first stage in the filtration process.

It is custom-made to fit perfectly inside the filter chamber to prevent debris bypass.

The foam pad has a pore size that allows efficient water flow, less clogging and long-lasting filtration.

Suitable for freshwater, marine or reptile environments.

Captures large particles and debris for effective mechanical filtration

Custom-made to fit perfectly inside the filter chamber to prevent debris bypass

Has a pore size that allows efficient water flow, less clogging and long-lasting filtration